I've emailed and I wanted to leave a comment.
I also see the ram issue, it uses about 5gbs of ram. The game does not stop however for me, except maintain the game state at a computer's turn. It is as if it has run into an AI issue where it does not know what to do. A value not being a returned perhaps. It happens about week 4-5. Sometimes restarting helps.
Honestly amazing game and we knew you will get to it when you can. Thanks!